Device for electrochemically machining recesses

Abstract

An electrode (10) for performing an electrochemical treatment process has two cathode disks (35, 45) used as treatment locations for a component (55). By means of a return flow channel (23) formed parallel with the inflow bore (12), these two treatment locations are possible one behind the other, viewed in the axial direction of the electrode (10). Furthermore, the gaps (43, 45, 38, 39) located at both sides of the cathode disks (35, 45) have been embodied to be of different sizes. Together with the shape and the radius of the cathode disks (35, 45), contours with different sections are possible. The electrode (10) makes possible an economical production of components with specially shaped contours, and several contours in a single work step.

We claim: 
     
       1. A device for electrochemical treatment of recesses in an interior of components made of electrically conducting materials, the device comprising a support composed of an electrically conducting material; at least one disk arranged on said support, past which an electrolyte solution flows; means forming an inflow for the electrolyte solution; and means forming a return arranged so that the electrolyte solution is conducted through said return opposite to a direction of the inflow between said disk and a component, said means for forming the return being formed as a channel. 
     
     
       2. A device as defined in claim 1, wherein said means forming the inflow is formed as a bore in said support, said means for forming the return being formed as a channel which extends parallel to said bore. 
     
     
       3. A device as defined in claim 1; and further comprising a protective sleeve composed of an electrically non-conducting material, said means forming the return being a channel which is formed as a gap between said support and said protective sleeve. 
     
     
       4. A device as defined in claim 1; and further comprising another such disk, so that said disks include a first disk and a second disk. 
     
     
       5. A device as defined in claim 4, wherein said disks are arranged one behind the other as considered in an axial direction of said device. 
     
     
       6. A device as defined in claim 4; and further comprising at least a first and a second protective element composed of electrically non-conductive material and provided on said support, each of said protective elements being associated with a respective one of said disks so that a distance between one of said disks and a respective one of said protective elements being different than a distance from the other of said disks and the other of said protective elements. 
     
     
       7. A device as defined in claim 1; and further comprising at least a first and a second protective element composed of electrically non-conductive material and provided on said support. 
     
     
       8. A device as defined in claim 1; and further comprising another such disk so that a first and a second disk are provided, said means forming the inflow being formed as a bore, said bore in an area between said disks having a lesser diameter than in a remaining area. 
     
     
       9. A device for electrochemical treatment of recesses in an interior of components made of electrically conducting materials, the device comprising a support composed of an electrically conducting material; a first and a second disk arranged on said support, past which an electrolyte solution flows; means forming an inflow for the electrolyte solution; and means forming a return arranged so that the electrolyte solution is conducted through said return opposite to a direction of the inflow between said disk and a component, said means for forming the return being formed as a channel, said means for forming the inflow being formed so that the electrolyte solution is conducted in the direction of the inflow between said second disk and a component to the return.